Rocksteady, Mutant Marauder 
Legendary Creature — Rhino Mutant
$0.23 #9928 0.29 0.6 years
Partner with Bebop, Skull & Crossbones (When this creature enters, target player may put Bebop into their hand from their library, then shuffle.)
Trample
Whenever another nontoken creature you control enters, put a +1/+1 counter on target creature.
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"Trample"
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"Whenever another creature you control enters, put a +1/+1 counter on that creature and a +1/+1 counter on this creature."
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"Trample"
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"Whenever another creature you control enters, put a +1/+1 counter on that creature."
Mabel, Valley Hero82%
$0.20↓#21925↓0.09↓0.0 years
"Whenever this card or another creature you control enters, put a +1/+1 counter on target creature that entered this turn."
Earth King's Lieutenant82%
$0.32↑#7439↑0.16↓0.9 years
"Trample"
Celebrity Fencer81%
$0.20↓#18796↓0.00↓4.5 years↑
"Whenever another creature you control enters, put a +1/+1 counter on this creature."
EPF Point Squad81%
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"Whenever another creature you control enters, put a +1/+1 counter on this creature."
Michelangelo, the Heart81%
$0.93↑#81610.64↑0.6 years
"Trample"
Sandsteppe War Riders80%
$0.14↓#20668↓0.00↓3.5 years↑
"Trample"
Graypelt Hunter80%
$0.17↓#21568↓0.00↓16.7 years↑
"Trample"
Malamet Veteran79%
$0.14↓#20294↓0.00↓2.9 years↑
"Trample"
Mighty Mutanimals78%
$0.19↓#16427↓0.260.6 years
"Whenever another creature you control enters, put a +1/+1 counter on target creature you control."
Ivy Lane Denizen78%
$0.20↓#2484↑0.2213.7 years↑
"Whenever another green creature you control enters, put a +1/+1 counter on target creature."
Cragsmasher Yeti78%
$0.06↓#22277↓0.17↓3.5 years↑
"Trample"
Anafenza, Kin-Tree Spirit77%
$0.26↑#6085↑0.06↓11.6 years↑
"Whenever another nontoken creature you control enters, bolster 1."
Ethereal Elk77%
$0.26↑#28796↓0.207.3 years↑
"Trample"
Arni, Renowned Champion77%
$0.15↓#26706↓0.10↓0.0 years
"Trample"
Master Chef76%
$0.28↑#4383↑0.194.4 years↑
"Commander creatures you own have "This creature enters with an additional +1/+1 counter on it" and "Other creatures you control enter with an additional +1/+1 counter on them.""
Warden of the Grove75%
$1.58↑#2192↑0.251.5 years
"Whenever another nontoken creature you control enters, it endures X, where X is the number of counters on this creature."